Peened mounting for nut-like member



May 23, 1961 F. G. CONSANDINE 2,985,213

PEENED MOUNTING FOR NUT-LIKE MEMBER Filed Aug. 12, 1958 INVENTOR.

HTTORNEY FFEDER//(G Cam/wow:

- ted dttes Patent iPatented May 23, 1961 PEENED MOUNTEIG FOR NUT-LIKEMEMBER Frederick G. Consandine, Clark, N.J., assignor to Tops lg letalProd. (30., Newark, N.J., a corporation of New ersey Filed Aug 12, 1958,Set. No. 754,627

1 Claim. (c1. 151-4112 This invention relates to the mounting ofnut-like members in connection with suitable supports, having speciallyshaped apertures for reception of a rectangular portion of a nut-likemember and, wherein, said rectangular portion is peened-over to engageat least the major portion of the boundary walls of said aperture and,particularly, onto lands on the support arranged adjacent corners ofsaid rectangular portion.

The novel features of the invention will be best understood from thefollowing description, when taken together with the accompanyingdrawing, in which certain embodiments of the invention are disclosedand, in which, the separate parts are designated by suitable referencecharacters in each of the views and, in which:

Fig. l is a plan view of a part of a support showing one of my improvednut-like members attached to the support, the view looking in thedirection of the peened side of said member.

Fig. 2 is a section on the line 2--2 of Fig. 1, indicating, in dottedlines, the normal contour of the rectangular portion of the nut memberemployed.

Fig. 3 is a partial section on the line 3-3 of Fig. 1.

Fig. 4 is a partial section on the line 44 of Fig. l; and

Fig. 5 is a view, similar to Fig. 1, showing only the support andindicating, in dot-dash lines, the rectangular portion only of thenut-like member.

To illustrate one adaptation and use of my invention, I have shown, at111 in the accompanying drawing, part of a support of any type or kindand this support has, in an area thereof, a depressed or offset wall 11,as clearly noted in Fig. 2 of the drawing, which forms a substantiallycircular recess 12 on one surface of the support.

The wall 11, note Fig. 5, has a generally circular aperture 13 thereinand spaced about the periphery of the aperture are substantiallysemi-circular recesses 14. The recesses or notches 14 are four in numberand so spaced as to receive corner portions 15 of an angular orrectangular portion 16, indicated in dot-dash lines in Fig. 5 of thedrawing, of a nut member 17, said member being shown in cross-section inFig. 2 of the drawing. The portion 16 is on one side of the member 17and extending from opposed sides of the portion 16 are flange extensions18, which are within boundaries of the other opposed edges of theportion 16, as will clearly appear from the dotted line showing of 18 inFig. 1 of the drawing.

It will appear that, when the rectangular portion 16 is positioned inthe aperture 13 and the notches or recesses 14, the wall 11 will havepairs of lands 19 arranged closely adjacent angular sides of therectangular portion 16 adjacent the corners 15, as clearly noted in Fig.5 of the drawing.

Fig. 4 of the drawing shows a sectional view through one of the lands 19to clearly indicate the extent of engagement of the peened-over portion20 on each of the lands. In other words, the rectangular portion 16 ispeened to extend and flare the metal to extend not only over the lands19, but in contracted portions beyond the notches or recesses 14, asindicated at 21 in Figs. 1 and 3 of the drawing. It will also appearthat portions of the peened metal will also extend onto the wall 11intermediate the pairs of adjacent lands, as is indicated at 22 in Figs.1 and 2 of the drawing.

The peening operation will leave, centrally of the upper surface of therectangular portion 16 as noted in Figs. 1 and 2 of the drawing, anannular projecting ring or collar 23, the thickness of which will dependentirely upon the extent of peening of the metal, it being kept in mindthat, in some instances, the metal may not be peened over sufficientlyto overlie the wall 11 at the positions 22, noted in Fig. 1 of thedrawing, the important thing being to establish a positive lockingengagement of the member 17 with the wall 11 of the support, at leastupon the lands 19 and around the notches or recesses 14. The member 17has a suitably threaded bore 24 for reception of a bolt or otherfastener.

It will appear that the lands 19, in addition to providing relativelylarge surfaces for engagement of the peened-over metal, particularly asseen in section in Fig. 4 of the drawing, also provide means fordefinitely retaining the nut member 17 against any possible rotation andthis will readily appear from a consideration of Fig. 5 of the drawing,where the inwardly extending portions of the lands are shown in closeproximity to outer surfaces of the rectangular portion 16.

It will be apparent, however, that where the lands 19 are located overthe projecting flanges 18, the wall 11 is actually pinched or compressedbetween the peening 20 and the flange 18.

By virtue of the structure and method of procedure followed inattachment of the nut-like member to a support, the desired end resultcan be accomplished simply and economically with assurance of positiveengagement of the member 17 with the support in retaining the sameagainst displacement, regardless of the stress or strain to which themember 17 may be subjected.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent is:

The herein described means for mounting a nut member having a threadedbore in connection with a support, the support having a wall with acircular aperture therein with four circumferentially spaced notchesprojecting outwardly at the periphery of said aperture, the notchesforming, on said wall, four pairs of circumferentially spaced lands, anut member having a square end portion defining four circumferentiallyspaced corners adapted to be arranged in said four notches inpositioning the square end in said circular aperture, spacing of opposedfiat sides of said square end portion being materially less than thediameter of said aperture, said pairs of lands engaging surfaces of saidcorners in definitely keying the nut member against rotation in saidcircular aperture, the other end of said member being enlarged to engageone surface of the apertured wall of the support, part of said squareend being circumferentially peened-over to engage the other opposedsurface of the wall and upon the lands adjacent the notched portions ofsaid wall in fixing and keying the nut member to said wall, and theremaining part of the square end of the nut member defining a round ringbordering the threaded bore of said member.

References Cited in the file of this patent UNITED STATES PATENTS2,110,039 Double Mar. 1, 1938 2,138,409 Salter Nov. 29, 1938 2,191,192Ross Feb. 20, 1940 FOREIGN PATENTS 436,706 Great Britain .....a Oct. 16,1935

